CLAS Physics Database

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Measurement E151M2477

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).

No publications available for this experiment

Quantity measured: A_LU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π⁺n, polarization: none

Q² :	0.0707 GeV²
W :	1235 GeV
ε :	0.8648
E_beam :	1.0539 GeV
ε_L:	0.4208

Select data slice:
cos(θ_π⁺) =

Observable quantity measured (Y axis): A_LU,
Plot measurement data

Parameter (X axis): φ(π⁺), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ_π⁺)	φ(π⁺), degrees	A_LU	Stat. error	Syst. error
0.05	42	-0.0134	0.2491	0.03
0.15	42	-0.0488	0.2148	0.03
0.15	54	0.4444	0.2188	0.0313
0.25	42	-0.3054	0.2108	0.0306
0.25	54	0.0674	0.2628	0.03
0.35	282	-0.3273	0.2063	0.0307
0.45	270	0.0819	0.195	0.03
0.45	282	0.1688	0.1853	0.0302
0.45	294	-0.2183	0.222	0.0303
0.55	258	-0.1854	0.1843	0.0302
0.55	270	0.2555	0.1456	0.0304
0.55	282	0.0139	0.141	0.03
0.55	294	-0.0283	0.1875	0.03
0.65	246	0.0239	0.2286	0.03
0.65	258	0.0251	0.1658	0.03
0.65	270	-0.2438	0.1266	0.0304
0.65	282	-0.0898	0.1368	0.0301
0.65	294	-0.0028	0.2058	0.03
0.75	138	0.2546	0.2243	0.0304
0.75	234	-0.0062	0.2269	0.03
0.75	246	0.0478	0.2086	0.03
0.75	258	-0.2222	0.1433	0.0303
0.75	270	-0.0129	0.138	0.03
0.75	282	0.2893	0.1539	0.0306
0.75	294	-0.5541	0.1782	0.032
0.85	114	0.1425	0.237	0.0301
0.85	126	0.2762	0.1902	0.0305
0.85	138	-0.1273	0.1704	0.0301
0.85	150	0.1276	0.1603	0.0301
0.85	162	0.0109	0.1454	0.03
0.85	174	0.0648	0.1669	0.03
0.85	186	-0.0261	0.1589	0.03
0.85	198	0.283	0.1799	0.0305
0.85	210	-0.4693	0.1611	0.0314
0.85	222	-0.0311	0.2458	0.03
0.85	246	-0.2872	0.2126	0.0305
0.85	258	0.3956	0.1735	0.031
0.85	270	-0.0379	0.1595	0.03
0.85	282	0.0204	0.1887	0.03
0.95	126	0.1822	0.2059	0.0302
0.95	138	-0.1156	0.1878	0.0301
0.95	150	0.2836	0.152	0.0305
0.95	162	0.1887	0.1727	0.0302
0.95	174	-0.0999	0.181	0.0301
0.95	186	-0.0824	0.181	0.03
0.95	198	-0.1644	0.2067	0.0302
0.95	210	0.1089	0.2017	0.0301